英语作文换行连字符的用法
    英文回答：
    In English, a hyphen is used to connect two or more words that function together as a single concept or to join prefixes and suffixes to words. For example, in the phrase "well-known author," the hyphen connects "well" and "known" to form a compound adjective. Another example is "pre-approval," where the hyphen connects the prefix "pre" to the word "approval."
    A dash, on the other hand, is used to indicate a sudden change in thought or to set off a parenthetical statement. For instance, "I was about to leave—then I remembered I had forgotten my keys." The dash is also used to create a strong break in a sentence, similar to parentheses or commas.字符串常量用单引号还是双引号
    中文回答：
    在中文中，连字符的使用也是非常常见的。它可以用来连接复合词，比如“高中生”，“中英
文”，“长期以来”等等。另外，连字符还可以用来连接数字，比如电话号码、年份等，比如“123-456-7890”，“1990-2000”。
    总的来说，连字符在英语和中文中的使用方式有些许不同，但都是用来连接词语或者数字，使句子更加清晰和连贯。

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